marginswap / marginswap-core

Core contracts for marginswap functionality

marginswap-core

Core contracts for marginswap functionality

Install

Install dependencies:

yarn install
git clone [email protected]:marginswap/core-abi.git build

Place a private key file in your home folder ~/.marginswap-secret. If you want it to match up with your wallet like MetaMask, create the account in your wallet, copy the private key and paste it into the file.

Rationale

MarginRouter is the entry point for most traders to interact with the protocol. Lending and CrossMarginTrading, as well as their ancilliary superclasses are the lending and borrowing sides of the system.

We have gone for a relatively modular approach which should make it easy for governance to switch out / update parts of the logic. There is a central registry for roles. Also, funds are kept at arm's length from functionality.

The DependencyController contract provides cache invalidation and tracking of roles and relationships between contracts, central verification of integrity of our ownership structure as well as additonal safeguards for governance-approved protocol-wide actions.

There is to be no constantly-updating oracle or gas-costly block-wise auctions for token holders.

marginswap-core's Issues

A very simple dApp for liquidity staking

When users deposit liquidity into the trading pair USDC - MFI on uniswap they are minted and sent a different "liquidity" token which represents their share of the entire liquidity pool, in the case of the USDC - MFI trading pair, it's this token contract.

We want to incentivize people to do so, as such they can take those tokens and deposit them into a contract which we will deploy, in order to then earn more of the MFI tokens. For this we need a frontend UI to help people deposit and withdraw.

I set up a repo here: https://github.com/marginswap/lp-incentive-interface

The app should:

• Be a react/TS app
• Run on netlify / JAMstack (I.e. static site generated by yarn build)
• Using ethers.js

It should talk to the contract in contracts/LiquidityMiningReward.sol as well as a token which is at address 0x9d640080af7c81911d87632a7d09cc4ab6b133ac . I will provide a local deployment script later.

When a user goes to the website they will do the following:

• Enter an amount of tokens in a input box.

• Click one button which will call the function approve(address spender, uint256 amount) (interface spec) on the liquidity token contract, where the spender address will be the address of the LiquidityMiningReward contract.

• Once that function call has been processed through the user's wallet (such as MetaMask) they will come back to the website and click another button which will deposit their liquidity tokens using the depositStake(uint256 amount) function in the mining reward contract

• Later, when they want to withdraw, they will come back and be able to hit a button which calls withdrawStake() in the same contract.

Check for error modes if an unauthorized token gets used.

insert require checks liberally or show that it could never happen (bearing in mind that external contracts can be upgraded)

Local test deployment

We want to translate the code in contracts/V1.sol into JS/TS based deployment scripts, probably using ether.js.
I think we want to use hardhat for (unit) testing the contracts, but we need to still have to find a way to run an ongoing local ethereum blockchain. This could be hardhat scripts (since hardhat doesn't have native migrations, or we could use etherlime.
Brownie would be the nicest, but probably not advisable since it's Python.
Here's a dump of my hardhat console session doing the kind of work I would do to translate V1.sol into JS:

// $ npx hardhat console
Welcome to Node.js v13.14.0.
Type ".help" for more information.
> ethers
{
  Contract: [Function: Contract] {
    getContractAddress: [Function (anonymous)],
    getInterface: [Function (anonymous)],
    isIndexed: [Function (anonymous)]
  },
  ContractFactory: [Function: ContractFactory] {
    fromSolidity: [Function (anonymous)],
    getInterface: [Function (anonymous)],
    getContractAddress: [Function (anonymous)],
    getContract: [Function (anonymous)]
  },
  BigNumber: [Function: BigNumber] {
    from: [Function (anonymous)],
    isBigNumber: [Function (anonymous)]
  },
  FixedNumber: [Function: FixedNumber] {
    fromValue: [Function (anonymous)],
    fromString: [Function (anonymous)],
    fromBytes: [Function (anonymous)],
    from: [Function (anonymous)],
    isFixedNumber: [Function (anonymous)]
  },
  Signer: [Function: Signer] { isSigner: [Function (anonymous)] },
  VoidSigner: [Function: VoidSigner],
  Wallet: [Function: Wallet] {
    createRandom: [Function (anonymous)],
    fromEncryptedJson: [Function (anonymous)],
    fromEncryptedJsonSync: [Function (anonymous)],
    fromMnemonic: [Function (anonymous)]
  },
  constants: {
    AddressZero: '0x0000000000000000000000000000000000000000',
    NegativeOne: BigNumber { _hex: '-0x01', _isBigNumber: true },
    Zero: BigNumber { _hex: '0x00', _isBigNumber: true },
    One: BigNumber { _hex: '0x01', _isBigNumber: true },
    Two: BigNumber { _hex: '0x02', _isBigNumber: true },
    WeiPerEther: BigNumber { _hex: '0x0de0b6b3a7640000', _isBigNumber: true },
    MaxUint256: BigNumber {
      _hex: '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff',
      _isBigNumber: true
    },
    HashZero: '0x0000000000000000000000000000000000000000000000000000000000000000',
    EtherSymbol: 'Ξ'
  },
  providers: {
    Provider: [Function: Provider] { isProvider: [Function (anonymous)] },
    getNetwork: [Function: getNetwork],
    BaseProvider: [Function: BaseProvider] {
      getFormatter: [Function (anonymous)],
      getNetwork: [Function (anonymous)]
    },
    Resolver: [Function: Resolver],
    AlchemyProvider: [Function: AlchemyProvider] {
      getWebSocketProvider: [Function (anonymous)],
      getApiKey: [Function (anonymous)],
      getUrl: [Function (anonymous)]
    },
    AlchemyWebSocketProvider: [Function: AlchemyWebSocketProvider],
    CloudflareProvider: [Function: CloudflareProvider] {
      getApiKey: [Function (anonymous)],
      getUrl: [Function (anonymous)]
    },
    EtherscanProvider: [Function: EtherscanProvider],
    FallbackProvider: [Function: FallbackProvider],
    IpcProvider: [Function: IpcProvider],
    InfuraProvider: [Function: InfuraProvider] {
      getWebSocketProvider: [Function (anonymous)],
      getApiKey: [Function (anonymous)],
      getUrl: [Function (anonymous)]
    },
    InfuraWebSocketProvider: [Function: InfuraWebSocketProvider],
    JsonRpcProvider: [Function: JsonRpcProvider] {
      defaultUrl: [Function (anonymous)],
      hexlifyTransaction: [Function (anonymous)]
    },
    JsonRpcSigner: [Function: JsonRpcSigner],
    NodesmithProvider: [Function: NodesmithProvider] {
      getApiKey: [Function (anonymous)],
      getUrl: [Function (anonymous)]
    },
    PocketProvider: [Function: PocketProvider] {
      getApiKey: [Function (anonymous)],
      getUrl: [Function (anonymous)]
    },
    StaticJsonRpcProvider: [Function: StaticJsonRpcProvider],
    UrlJsonRpcProvider: [Function: UrlJsonRpcProvider] {
      getApiKey: [Function (anonymous)],
      getUrl: [Function (anonymous)]
    },
    Web3Provider: [Function: Web3Provider],
    WebSocketProvider: [Function: WebSocketProvider] { defaultUrl: [Function (anonymous)] },
    Formatter: [Function: Formatter] {
      check: [Function (anonymous)],
      allowNull: [Function (anonymous)],
      allowFalsish: [Function (anonymous)],
      arrayOf: [Function (anonymous)]
    },
    isCommunityResourcable: [Function: isCommunityResourcable],
    isCommunityResource: [Function: isCommunityResource],
    showThrottleMessage: [Function: showThrottleMessage],
    getDefaultProvider: [Function: getDefaultProvider]
  },
  getDefaultProvider: [Function: getDefaultProvider],
  Wordlist: [Function: Wordlist] {
    check: [Function (anonymous)],
    register: [Function (anonymous)]
  },
  wordlists: {
    cz: LangCz { locale: 'cz' },
    en: LangEn { locale: 'en' },
    es: LangEs { locale: 'es' },
    fr: LangFr { locale: 'fr' },
    it: LangIt { locale: 'it' },
    ja: LangJa { locale: 'ja' },
    ko: LangKo { locale: 'ko' },
    zh: LangZh { locale: 'zh_cn' },
    zh_cn: LangZh { locale: 'zh_cn' },
    zh_tw: LangZh { locale: 'zh_tw' }
  },
  utils: {
    AbiCoder: [Function: AbiCoder],
    checkResultErrors: [Function: checkResultErrors],
    defaultAbiCoder: AbiCoder { coerceFunc: null },
    EventFragment: [Function: EventFragment] {
      from: [Function (anonymous)],
      fromObject: [Function (anonymous)],
      fromString: [Function (anonymous)],
      isEventFragment: [Function (anonymous)]
    },
    FormatTypes: {
      sighash: 'sighash',
      minimal: 'minimal',
      full: 'full',
      json: 'json'
    },
    Fragment: [Function: Fragment] {
      from: [Function (anonymous)],
      fromObject: [Function (anonymous)],
      fromString: [Function (anonymous)],
      isFragment: [Function (anonymous)]
    },
    FunctionFragment: [Function: FunctionFragment] {
      from: [Function (anonymous)],
      fromObject: [Function (anonymous)],
      fromString: [Function (anonymous)],
      isFunctionFragment: [Function (anonymous)]
    },
    Indexed: [Function: Indexed] { isIndexed: [Function (anonymous)] },
    Interface: [Function: Interface] {
      getAbiCoder: [Function (anonymous)],
      getAddress: [Function (anonymous)],
      getSighash: [Function (anonymous)],
      getEventTopic: [Function (anonymous)],
      isInterface: [Function (anonymous)]
    },
    LogDescription: [Function: LogDescription],
    ParamType: [Function: ParamType] {
      from: [Function (anonymous)],
      fromObject: [Function (anonymous)],
      fromString: [Function (anonymous)],
      isParamType: [Function (anonymous)]
    },
    TransactionDescription: [Function: TransactionDescription],
    getAddress: [Function: getAddress],
    getCreate2Address: [Function: getCreate2Address],
    getContractAddress: [Function: getContractAddress],
    getIcapAddress: [Function: getIcapAddress],
    isAddress: [Function: isAddress],
    base64: { decode: [Function: decode], encode: [Function: encode] },
    base58: BaseX {
      alphabet: '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz',
      base: 58,
      _alphabetMap: [Object],
      _leader: '1'
    },
    arrayify: [Function: arrayify],
    concat: [Function: concat],
    hexConcat: [Function: hexConcat],
    hexDataSlice: [Function: hexDataSlice],
    hexDataLength: [Function: hexDataLength],
    hexlify: [Function: hexlify],
    hexStripZeros: [Function: hexStripZeros],
    hexValue: [Function: hexValue],
    hexZeroPad: [Function: hexZeroPad],
    isBytes: [Function: isBytes],
    isBytesLike: [Function: isBytesLike],
    isHexString: [Function: isHexString],
    joinSignature: [Function: joinSignature],
    zeroPad: [Function: zeroPad],
    splitSignature: [Function: splitSignature],
    stripZeros: [Function: stripZeros],
    _TypedDataEncoder: [Function: TypedDataEncoder] {
      from: [Function (anonymous)],
      getPrimaryType: [Function (anonymous)],
      hashStruct: [Function (anonymous)],
      hashDomain: [Function (anonymous)],
      encode: [Function (anonymous)],
      hash: [Function (anonymous)],
      resolveNames: [Function (anonymous)],
      getPayload: [Function (anonymous)]
    },
    hashMessage: [Function: hashMessage],
    id: [Function: id],
    isValidName: [Function: isValidName],
    namehash: [Function: namehash],
    defaultPath: "m/44'/60'/0'/0/0",
    entropyToMnemonic: [Function: entropyToMnemonic],
    HDNode: [Function: HDNode] {
      _fromSeed: [Function (anonymous)],
      fromMnemonic: [Function (anonymous)],
      fromSeed: [Function (anonymous)],
      fromExtendedKey: [Function (anonymous)]
    },
    isValidMnemonic: [Function: isValidMnemonic],
    mnemonicToEntropy: [Function: mnemonicToEntropy],
    mnemonicToSeed: [Function: mnemonicToSeed],
    getJsonWalletAddress: [Function: getJsonWalletAddress],
    keccak256: [Function: keccak256],
    Logger: [Function: Logger] {
      globalLogger: [Function (anonymous)],
      setCensorship: [Function (anonymous)],
      setLogLevel: [Function (anonymous)],
      from: [Function (anonymous)],
      errors: [Object],
      levels: [Object]
    },
    computeHmac: [Function: computeHmac],
    ripemd160: [Function: ripemd160],
    sha256: [Function: sha256],
    sha512: [Function: sha512],
    solidityKeccak256: [Function: keccak256],
    solidityPack: [Function: pack],
    soliditySha256: [Function: sha256],
    randomBytes: [Function: randomBytes],
    shuffled: [Function: shuffled],
    checkProperties: [Function: checkProperties],
    deepCopy: [Function: deepCopy],
    defineReadOnly: [Function: defineReadOnly],
    getStatic: [Function: getStatic],
    resolveProperties: [Function: resolveProperties],
    shallowCopy: [Function: shallowCopy],
    RLP: { encode: [Function: encode], decode: [Function: decode] },
    computePublicKey: [Function: computePublicKey],
    recoverPublicKey: [Function: recoverPublicKey],
    SigningKey: [Function: SigningKey] { isSigningKey: [Function (anonymous)] },
    formatBytes32String: [Function: formatBytes32String],
    nameprep: [Function: nameprep],
    parseBytes32String: [Function: parseBytes32String],
    _toEscapedUtf8String: [Function: _toEscapedUtf8String],
    toUtf8Bytes: [Function: toUtf8Bytes],
    toUtf8CodePoints: [Function: toUtf8CodePoints],
    toUtf8String: [Function: toUtf8String],
    Utf8ErrorFuncs: {
      error: [Function: errorFunc],
      ignore: [Function: ignoreFunc],
      replace: [Function: replaceFunc]
    },
    computeAddress: [Function: computeAddress],
    parseTransaction: [Function: parse],
    recoverAddress: [Function: recoverAddress],
    serializeTransaction: [Function: serialize],
    commify: [Function: commify],
    formatEther: [Function: formatEther],
    parseEther: [Function: parseEther],
    formatUnits: [Function: formatUnits],
    parseUnits: [Function: parseUnits],
    verifyMessage: [Function: verifyMessage],
    verifyTypedData: [Function: verifyTypedData],
    _fetchData: [Function: _fetchData],
    fetchJson: [Function: fetchJson],
    poll: [Function: poll],
    SupportedAlgorithm: { sha256: 'sha256', sha512: 'sha512' },
    UnicodeNormalizationForm: { current: '', NFC: 'NFC', NFD: 'NFD', NFKC: 'NFKC', NFKD: 'NFKD' },
    Utf8ErrorReason: {
      UNEXPECTED_CONTINUE: 'unexpected continuation byte',
      BAD_PREFIX: 'bad codepoint prefix',
      OVERRUN: 'string overrun',
      MISSING_CONTINUE: 'missing continuation byte',
      OUT_OF_RANGE: 'out of UTF-8 range',
      UTF16_SURROGATE: 'UTF-16 surrogate',
      OVERLONG: 'overlong representation'
    }
  },
  errors: {
    UNKNOWN_ERROR: 'UNKNOWN_ERROR',
    NOT_IMPLEMENTED: 'NOT_IMPLEMENTED',
    UNSUPPORTED_OPERATION: 'UNSUPPORTED_OPERATION',
    NETWORK_ERROR: 'NETWORK_ERROR',
    SERVER_ERROR: 'SERVER_ERROR',
    TIMEOUT: 'TIMEOUT',
    BUFFER_OVERRUN: 'BUFFER_OVERRUN',
    NUMERIC_FAULT: 'NUMERIC_FAULT',
    MISSING_NEW: 'MISSING_NEW',
    INVALID_ARGUMENT: 'INVALID_ARGUMENT',
    MISSING_ARGUMENT: 'MISSING_ARGUMENT',
    UNEXPECTED_ARGUMENT: 'UNEXPECTED_ARGUMENT',
    CALL_EXCEPTION: 'CALL_EXCEPTION',
    INSUFFICIENT_FUNDS: 'INSUFFICIENT_FUNDS',
    NONCE_EXPIRED: 'NONCE_EXPIRED',
    REPLACEMENT_UNDERPRICED: 'REPLACEMENT_UNDERPRICED',
    UNPREDICTABLE_GAS_LIMIT: 'UNPREDICTABLE_GAS_LIMIT'
  },
  version: 'ethers/5.0.31',
  logger: Logger { version: 'ethers/5.0.31' },
  provider: EthersProviderWrapper {
    _isProvider: true,
    _events: [],
    _emitted: { block: -2 },
    formatter: Formatter { formats: [Object] },
    anyNetwork: false,
    _networkPromise: Promise { <pending> },
    _maxInternalBlockNumber: -1024,
    _lastBlockNumber: -2,
    _pollingInterval: 4000,
    _fastQueryDate: 0,
    connection: { url: 'http://localhost:8545' },
    _nextId: 42,
    _hardhatProvider: BackwardsCompatibilityProviderAdapter {
      _wrapped: FixedGasPriceProvider {
        _wrapped: FixedGasProvider {
          _wrapped: [AutomaticSenderProvider],
          _wrappedProvider: [AutomaticSenderProvider],
          _gasLimit: 9500000
        },
        _wrappedProvider: FixedGasProvider {
          _wrapped: [AutomaticSenderProvider],
          _wrappedProvider: [AutomaticSenderProvider],
          _gasLimit: 9500000
        },
        _gasPrice: 8000000000
      },
      _provider: FixedGasPriceProvider {
        _wrapped: FixedGasProvider {
          _wrapped: [AutomaticSenderProvider],
          _wrappedProvider: [AutomaticSenderProvider],
          _gasLimit: 9500000
        },
        _wrappedProvider: FixedGasProvider {
          _wrapped: [AutomaticSenderProvider],
          _wrappedProvider: [AutomaticSenderProvider],
          _gasLimit: 9500000
        },
        _gasPrice: 8000000000
      },
      sendAsync: [Function: bound sendAsync],
      send: [Function: bound send],
      _sendJsonRpcRequest: [Function: bound _sendJsonRpcRequest] AsyncFunction
    }
  },
  getSigners: [AsyncFunction: getSigners],
  getContractFactory: [Function: bound getContractFactory] AsyncFunction,
  getContractAt: [Function: bound getContractAt] AsyncFunction
}
> const V1 = await ethers.getContr
undefined
> const V1 = await ethers.getContr
undefined
> const V1 = await ethers.getContractFactory("V1");
undefined
> const WETH = "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2";
undefined
> const MFI_ADDRESS = "0xAa4e3edb11AFa93c41db59842b29de64b72E355B";
undefined
> const REAL_TREASURY = "0x16F3Fc1E4BA9d70f47387b902fa5d21020b5C6B5";
undefined
> const UNISWAP_FACTORY = "0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f";
undefined
> const SUSHISWAP_FACTORY = "0xC0AEe478e3658e2610c5F7A4A2E1777cE9e4f2Ac";
undefined
> const USDC_ADDRESS = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48";
undefined
> V1.deploy(treasury,
...                     WETH,
...                     feesPer10k,
...                     MFI_ADDRESS,
...                     UNISWAP_FACTORY,
...                     SUSHISWAP_FACTORY,
...                     USDC_ADDRESS);
Uncaught ReferenceError: treasury is not defined
> let treasury = REAL_TREASURY;
undefined
>     let feesPer10k = 10;
undefined
> V1.deploy(treasury,WETH,
...                     feesPer10k,
...                     MFI_ADDRESS,
...                     UNISWAP_FACTORY,
...                     SUSHISWAP_FACTORY,
...                     USDC_ADDRESS);
Promise { <pending> }
> (node:3395) UnhandledPromiseRejectionWarning: Error: Transaction reverted: contract call run out of gas and made the transaction revert
    at <UnrecognizedContract>.<unknown> (unknown)
    at V1.constructor (contracts/V1.sol:55)
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
    at EthModule._estimateGasAction (/home/tixelbook/projects/marginswap-core/node_modules/hardhat/src/internal/hardhat-network/provider/modules/eth.ts:402:9)
    at HardhatNetworkProvider.request (/home/tixelbook/projects/marginswap-core/node_modules/hardhat/src/internal/hardhat-network/provider/provider.ts:102:18)
    at EthersProviderWrapper.send (/home/tixelbook/projects/marginswap-core/node_modules/@nomiclabs/hardhat-ethers/src/ethers-provider-wrapper.ts:13:20)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:3395) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 16)
(node:3395) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

> const Fund = ethers.getContractFactory("Fund");
undefined
> const Roles = ethers.getContractFactory("Roles");
undefined
> const Fund = await ethers.getContractFactory("Fund");
Uncaught TypeError: Assignment to constant variable.
> const Fund1 = await ethers.getContractFactory("Fund");
undefined
> const Roles1 = await ethers.getContractFactory("Roles");
undefined
> const roles = Roles.deploy();
Uncaught TypeError: Roles.deploy is not a function
> const roles = Roles1.deploy();
Uncaught SyntaxError: Identifier 'roles' has already been declared
> const roles1 = Roles1.deploy();
undefined
> roles2 = await roles1;
Contract {
  interface: Interface {
    fragments: [
      [EventFragment],
      [FunctionFragment],
      [FunctionFragment],
      [FunctionFragment],
      [FunctionFragment],
      [FunctionFragment],
      [FunctionFragment],
      [FunctionFragment],
      [FunctionFragment],
      [FunctionFragment]
    ],
    _abiCoder: AbiCoder { coerceFunc: null },
    functions: {
      'getRole(address,uint8)': [FunctionFragment],
      'giveRole(uint8,address)': [FunctionFragment],
      'mainCharacters(uint8)': [FunctionFragment],
      'owner()': [FunctionFragment],
      'removeRole(uint8,address)': [FunctionFragment],
      'renounceOwnership()': [FunctionFragment],
      'roles(address,uint8)': [FunctionFragment],
      'setMainCharacter(uint8,address)': [FunctionFragment],
      'transferOwnership(address)': [FunctionFragment]
    },
    errors: {},
    events: { 'OwnershipTransferred(address,address)': [EventFragment] },
    structs: {},
    deploy: ConstructorFragment {
      name: null,
      type: 'constructor',
      inputs: [],
      payable: false,
      stateMutability: 'nonpayable',
      gas: null,
      _isFragment: true
    },
    _isInterface: true
  },
  provider: EthersProviderWrapper {
    _isProvider: true,
    _events: [],
    _emitted: { block: -2 },
    formatter: Formatter { formats: [Object] },
    anyNetwork: false,
    _networkPromise: Promise { [Object] },
    _maxInternalBlockNumber: 1,
    _lastBlockNumber: -2,
    _pollingInterval: 4000,
    _fastQueryDate: 1613898802149,
    connection: { url: 'http://localhost:8545' },
    _nextId: 42,
    _hardhatProvider: BackwardsCompatibilityProviderAdapter {
      _wrapped: FixedGasPriceProvider {
        _wrapped: FixedGasProvider {
          _wrapped: [AutomaticSenderProvider],
          _wrappedProvider: [AutomaticSenderProvider],
          _gasLimit: 9500000
        },
        _wrappedProvider: FixedGasProvider {
          _wrapped: [AutomaticSenderProvider],
          _wrappedProvider: [AutomaticSenderProvider],
          _gasLimit: 9500000
        },
        _gasPrice: 8000000000
      },
      _provider: FixedGasPriceProvider {
        _wrapped: FixedGasProvider {
          _wrapped: [AutomaticSenderProvider],
          _wrappedProvider: [AutomaticSenderProvider],
          _gasLimit: 9500000
        },
        _wrappedProvider: FixedGasProvider {
          _wrapped: [AutomaticSenderProvider],
          _wrappedProvider: [AutomaticSenderProvider],
          _gasLimit: 9500000
        },
        _gasPrice: 8000000000
      },
      sendAsync: [Function: bound sendAsync],
      send: [Function: bound send],
      _sendJsonRpcRequest: [Function: bound _sendJsonRpcRequest] AsyncFunction
    },
    _network: { chainId: 31337, name: 'unknown' },
    _internalBlockNumber: Promise { [Object] },
    _fastBlockNumber: 1,
    _fastBlockNumberPromise: Promise { 1 }
  },
  signer: SignerWithAddress {
    _isSigner: true,
    address: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266',
    _signer: JsonRpcSigner {
      _isSigner: true,
      provider: [EthersProviderWrapper],
      _address: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266',
      _index: null
    },
    provider: EthersProviderWrapper {
      _isProvider: true,
      _events: [],
      _emitted: [Object],
      formatter: [Formatter],
      anyNetwork: false,
      _networkPromise: [Promise],
      _maxInternalBlockNumber: 1,
      _lastBlockNumber: -2,
      _pollingInterval: 4000,
      _fastQueryDate: 1613898802149,
      connection: [Object],
      _nextId: 42,
      _hardhatProvider: BackwardsCompatibilityProviderAdapter {
        _wrapped: FixedGasPriceProvider {
          _wrapped: FixedGasProvider {
            _wrapped: [AutomaticSenderProvider],
            _wrappedProvider: [AutomaticSenderProvider],
            _gasLimit: 9500000
          },
          _wrappedProvider: FixedGasProvider {
            _wrapped: [AutomaticSenderProvider],
            _wrappedProvider: [AutomaticSenderProvider],
            _gasLimit: 9500000
          },
          _gasPrice: 8000000000
        },
        _provider: FixedGasPriceProvider {
          _wrapped: FixedGasProvider {
            _wrapped: [AutomaticSenderProvider],
            _wrappedProvider: [AutomaticSenderProvider],
            _gasLimit: 9500000
          },
          _wrappedProvider: FixedGasProvider {
            _wrapped: [AutomaticSenderProvider],
            _wrappedProvider: [AutomaticSenderProvider],
            _gasLimit: 9500000
          },
          _gasPrice: 8000000000
        },
        sendAsync: [Function: bound sendAsync],
        send: [Function: bound send],
        _sendJsonRpcRequest: [Function: bound _sendJsonRpcRequest] AsyncFunction
      },
      _network: [Object],
      _internalBlockNumber: [Promise],
      _fastBlockNumber: 1,
      _fastBlockNumberPromise: [Promise]
    }
  },
  callStatic: {
    'getRole(address,uint8)': [Function (anonymous)],
    'giveRole(uint8,address)': [Function (anonymous)],
    'mainCharacters(uint8)': [Function (anonymous)],
    'owner()': [Function (anonymous)],
    'removeRole(uint8,address)': [Function (anonymous)],
    'renounceOwnership()': [Function (anonymous)],
    'roles(address,uint8)': [Function (anonymous)],
    'setMainCharacter(uint8,address)': [Function (anonymous)],
    'transferOwnership(address)': [Function (anonymous)],
    getRole: [Function (anonymous)],
    giveRole: [Function (anonymous)],
    mainCharacters: [Function (anonymous)],
    owner: [Function (anonymous)],
    removeRole: [Function (anonymous)],
    renounceOwnership: [Function (anonymous)],
    roles: [Function (anonymous)],
    setMainCharacter: [Function (anonymous)],
    transferOwnership: [Function (anonymous)]
  },
  estimateGas: {
    'getRole(address,uint8)': [Function (anonymous)],
    'giveRole(uint8,address)': [Function (anonymous)],
    'mainCharacters(uint8)': [Function (anonymous)],
    'owner()': [Function (anonymous)],
    'removeRole(uint8,address)': [Function (anonymous)],
    'renounceOwnership()': [Function (anonymous)],
    'roles(address,uint8)': [Function (anonymous)],
    'setMainCharacter(uint8,address)': [Function (anonymous)],
    'transferOwnership(address)': [Function (anonymous)],
    getRole: [Function (anonymous)],
    giveRole: [Function (anonymous)],
    mainCharacters: [Function (anonymous)],
    owner: [Function (anonymous)],
    removeRole: [Function (anonymous)],
    renounceOwnership: [Function (anonymous)],
    roles: [Function (anonymous)],
    setMainCharacter: [Function (anonymous)],
    transferOwnership: [Function (anonymous)]
  },
  functions: {
    'getRole(address,uint8)': [Function (anonymous)],
    'giveRole(uint8,address)': [Function (anonymous)],
    'mainCharacters(uint8)': [Function (anonymous)],
    'owner()': [Function (anonymous)],
    'removeRole(uint8,address)': [Function (anonymous)],
    'renounceOwnership()': [Function (anonymous)],
    'roles(address,uint8)': [Function (anonymous)],
    'setMainCharacter(uint8,address)': [Function (anonymous)],
    'transferOwnership(address)': [Function (anonymous)],
    getRole: [Function (anonymous)],
    giveRole: [Function (anonymous)],
    mainCharacters: [Function (anonymous)],
    owner: [Function (anonymous)],
    removeRole: [Function (anonymous)],
    renounceOwnership: [Function (anonymous)],
    roles: [Function (anonymous)],
    setMainCharacter: [Function (anonymous)],
    transferOwnership: [Function (anonymous)]
  },
  populateTransaction: {
    'getRole(address,uint8)': [Function (anonymous)],
    'giveRole(uint8,address)': [Function (anonymous)],
    'mainCharacters(uint8)': [Function (anonymous)],
    'owner()': [Function (anonymous)],
    'removeRole(uint8,address)': [Function (anonymous)],
    'renounceOwnership()': [Function (anonymous)],
    'roles(address,uint8)': [Function (anonymous)],
    'setMainCharacter(uint8,address)': [Function (anonymous)],
    'transferOwnership(address)': [Function (anonymous)],
    getRole: [Function (anonymous)],
    giveRole: [Function (anonymous)],
    mainCharacters: [Function (anonymous)],
    owner: [Function (anonymous)],
    removeRole: [Function (anonymous)],
    renounceOwnership: [Function (anonymous)],
    roles: [Function (anonymous)],
    setMainCharacter: [Function (anonymous)],
    transferOwnership: [Function (anonymous)]
  },
  filters: {
    'OwnershipTransferred(address,address)': [Function (anonymous)],
    OwnershipTransferred: [Function (anonymous)]
  },
  _runningEvents: {},
  _wrappedEmits: {},
  address: '0x5FbDB2315678afecb367f032d93F642f64180aa3',
  resolvedAddress: Promise { '0x5FbDB2315678afecb367f032d93F642f64180aa3' },
  'getRole(address,uint8)': [Function (anonymous)],
  'giveRole(uint8,address)': [Function (anonymous)],
  'mainCharacters(uint8)': [Function (anonymous)],
  'owner()': [Function (anonymous)],
  'removeRole(uint8,address)': [Function (anonymous)],
  'renounceOwnership()': [Function (anonymous)],
  'roles(address,uint8)': [Function (anonymous)],
  'setMainCharacter(uint8,address)': [Function (anonymous)],
  'transferOwnership(address)': [Function (anonymous)],
  getRole: [Function (anonymous)],
  giveRole: [Function (anonymous)],
  mainCharacters: [Function (anonymous)],
  owner: [Function (anonymous)],
  removeRole: [Function (anonymous)],
  renounceOwnership: [Function (anonymous)],
  roles: [Function (anonymous)],
  setMainCharacter: [Function (anonymous)],
  transferOwnership: [Function (anonymous)],
  deployTransaction: {
    hash: '0x277ff13402c2de03c61493b9289671afb8c2fd69eb0b1f0e1b1b86b32a321f2d',
    blockHash: '0xc1993c987cd2fa35ebd0c216ea39b717a2212d976c601ab205ae9fea4b55ea51',
    blockNumber: 1,
    transactionIndex: 0,
    confirmations: 1,
    from: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266',
    gasPrice: BigNumber { _hex: '0x01dcd65000', _isBigNumber: true },
    gasLimit: BigNumber { _hex: '0x0b4810', _isBigNumber: true },
    to: null,
    value: BigNumber { _hex: '0x00', _isBigNumber: true },
    nonce: 0,
    data: '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    r: '0x884dd4c8e8e235c6e032b6c03f2baffa375df382d9a1b7f2d740e9e69762b492',
    s: '0x74e173031839072a3fb41269d9fb23da0c2608ef7c3c9d7bfcf89c3b18b41b9e',
    v: 62710,
    creates: '0x5FbDB2315678afecb367f032d93F642f64180aa3',
    chainId: 31337,
    wait: [Function (anonymous)]
  }
}
> const fund = await Fund1.deploy(WETH, roles2.address);
undefined
> fund.transferOwnership(targetOwner);
Uncaught ReferenceError: targetOwner is not defined
> fund.transferOwnership(treasury);
Promise { <pending> }
> const Admin = await ethers.getContractFactory("Admin");
undefined
> const admin = Admin.deploy(feesPer10k, MFI_ADDRESS, roles2.address);
undefined
> admin1 = await admin;
Contract {
  interface: Interface {
    fragments: [
      [ConstructorFragment], [EventFragment],
      [FunctionFragment],    [FunctionFragment],
      [FunctionFragment],    [FunctionFragment],
      [FunctionFragment],    [FunctionFragment],
      [FunctionFragment],    [FunctionFragment],
      [FunctionFragment],    [FunctionFragment],
      [FunctionFragment],    [FunctionFragment],
      [FunctionFragment],    [FunctionFragment],
      [FunctionFragment],    [FunctionFragment],
      [FunctionFragment]
    ],
    _abiCoder: AbiCoder { coerceFunc: null },
    functions: {
      'addDelegate(address,address)': [FunctionFragment],
      'addTradingFees(address,uint256)': [FunctionFragment],
      'callMargin(address[])': [FunctionFragment],
      'collectedFees(address)': [FunctionFragment],
      'marginCallerStake(uint256)': [FunctionFragment],
      'mcDelegatedTo(address,address)': [FunctionFragment],
      'mcStakes(address)': [FunctionFragment],
      'owner()': [FunctionFragment],
      'removeDelegate(address,address)': [FunctionFragment],
      'renounceOwnership()': [FunctionFragment],
      'roles()': [FunctionFragment],
      'stake(uint256)': [FunctionFragment],
      'stakes(address)': [FunctionFragment],
      'subtractTradingFees(address,uint256)': [FunctionFragment],
      'totalStakes()': [FunctionFragment],
      'transferOwnership(address)': [FunctionFragment],
      'unstake(uint256,address)': [FunctionFragment]
    },
    errors: {},
    events: { 'OwnershipTransferred(address,address)': [EventFragment] },
    structs: {},
    deploy: ConstructorFragment {
      name: null,
      type: 'constructor',
      inputs: [Array],
      payable: false,
      stateMutability: 'nonpayable',
      gas: null,
      _isFragment: true
    },
    _isInterface: true
  },
  provider: EthersProviderWrapper {
    _isProvider: true,
    _events: [],
    _emitted: {
      block: -2,
      't:0x7c6d0242a37a89307f47449b8ba8e074b337dccc82d8f35f8ca1b60a41f3d36f': 2
    },
    formatter: Formatter { formats: [Object] },
    anyNetwork: false,
    _networkPromise: Promise { [Object] },
    _maxInternalBlockNumber: 4,
    _lastBlockNumber: -2,
    _pollingInterval: 4000,
    _fastQueryDate: 1613899179964,
    connection: { url: 'http://localhost:8545' },
    _nextId: 42,
    _hardhatProvider: BackwardsCompatibilityProviderAdapter {
      _wrapped: FixedGasPriceProvider {
        _wrapped: FixedGasProvider {
          _wrapped: [AutomaticSenderProvider],
          _wrappedProvider: [AutomaticSenderProvider],
          _gasLimit: 9500000
        },
        _wrappedProvider: FixedGasProvider {
          _wrapped: [AutomaticSenderProvider],
          _wrappedProvider: [AutomaticSenderProvider],
          _gasLimit: 9500000
        },
        _gasPrice: 8000000000
      },
      _provider: FixedGasPriceProvider {
        _wrapped: FixedGasProvider {
          _wrapped: [AutomaticSenderProvider],
          _wrappedProvider: [AutomaticSenderProvider],
          _gasLimit: 9500000
        },
        _wrappedProvider: FixedGasProvider {
          _wrapped: [AutomaticSenderProvider],
          _wrappedProvider: [AutomaticSenderProvider],
          _gasLimit: 9500000
        },
        _gasPrice: 8000000000
      },
      sendAsync: [Function: bound sendAsync],
      send: [Function: bound send],
      _sendJsonRpcRequest: [Function: bound _sendJsonRpcRequest] AsyncFunction
    },
    _network: { chainId: 31337, name: 'unknown' },
    _internalBlockNumber: Promise { [Object] },
    _fastBlockNumber: 4,
    _fastBlockNumberPromise: Promise { 4 }
  },
  signer: SignerWithAddress {
    _isSigner: true,
    address: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266',
    _signer: JsonRpcSigner {
      _isSigner: true,
      provider: [EthersProviderWrapper],
      _address: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266',
      _index: null
    },
    provider: EthersProviderWrapper {
      _isProvider: true,
      _events: [],
      _emitted: [Object],
      formatter: [Formatter],
      anyNetwork: false,
      _networkPromise: [Promise],
      _maxInternalBlockNumber: 4,
      _lastBlockNumber: -2,
      _pollingInterval: 4000,
      _fastQueryDate: 1613899179964,
      connection: [Object],
      _nextId: 42,
      _hardhatProvider: BackwardsCompatibilityProviderAdapter {
        _wrapped: FixedGasPriceProvider {
          _wrapped: FixedGasProvider {
            _wrapped: [AutomaticSenderProvider],
            _wrappedProvider: [AutomaticSenderProvider],
            _gasLimit: 9500000
          },
          _wrappedProvider: FixedGasProvider {
            _wrapped: [AutomaticSenderProvider],
            _wrappedProvider: [AutomaticSenderProvider],
            _gasLimit: 9500000
          },
          _gasPrice: 8000000000
        },
        _provider: FixedGasPriceProvider {
          _wrapped: FixedGasProvider {
            _wrapped: [AutomaticSenderProvider],
            _wrappedProvider: [AutomaticSenderProvider],
            _gasLimit: 9500000
          },
          _wrappedProvider: FixedGasProvider {
            _wrapped: [AutomaticSenderProvider],
            _wrappedProvider: [AutomaticSenderProvider],
            _gasLimit: 9500000
          },
          _gasPrice: 8000000000
        },
        sendAsync: [Function: bound sendAsync],
        send: [Function: bound send],
        _sendJsonRpcRequest: [Function: bound _sendJsonRpcRequest] AsyncFunction
      },
      _network: [Object],
      _internalBlockNumber: [Promise],
      _fastBlockNumber: 4,
      _fastBlockNumberPromise: [Promise]
    }
  },
  callStatic: {
    'addDelegate(address,address)': [Function (anonymous)],
    'addTradingFees(address,uint256)': [Function (anonymous)],
    'callMargin(address[])': [Function (anonymous)],
    'collectedFees(address)': [Function (anonymous)],
    'marginCallerStake(uint256)': [Function (anonymous)],
    'mcDelegatedTo(address,address)': [Function (anonymous)],
    'mcStakes(address)': [Function (anonymous)],
    'owner()': [Function (anonymous)],
    'removeDelegate(address,address)': [Function (anonymous)],
    'renounceOwnership()': [Function (anonymous)],
    'roles()': [Function (anonymous)],
    'stake(uint256)': [Function (anonymous)],
    'stakes(address)': [Function (anonymous)],
    'subtractTradingFees(address,uint256)': [Function (anonymous)],
    'totalStakes()': [Function (anonymous)],
    'transferOwnership(address)': [Function (anonymous)],
    'unstake(uint256,address)': [Function (anonymous)],
    addDelegate: [Function (anonymous)],
    addTradingFees: [Function (anonymous)],
    callMargin: [Function (anonymous)],
    collectedFees: [Function (anonymous)],
    marginCallerStake: [Function (anonymous)],
    mcDelegatedTo: [Function (anonymous)],
    mcStakes: [Function (anonymous)],
    owner: [Function (anonymous)],
    removeDelegate: [Function (anonymous)],
    renounceOwnership: [Function (anonymous)],
    roles: [Function (anonymous)],
    stake: [Function (anonymous)],
    stakes: [Function (anonymous)],
    subtractTradingFees: [Function (anonymous)],
    totalStakes: [Function (anonymous)],
    transferOwnership: [Function (anonymous)],
    unstake: [Function (anonymous)]
  },
  estimateGas: {
    'addDelegate(address,address)': [Function (anonymous)],
    'addTradingFees(address,uint256)': [Function (anonymous)],
    'callMargin(address[])': [Function (anonymous)],
    'collectedFees(address)': [Function (anonymous)],
    'marginCallerStake(uint256)': [Function (anonymous)],
    'mcDelegatedTo(address,address)': [Function (anonymous)],
    'mcStakes(address)': [Function (anonymous)],
    'owner()': [Function (anonymous)],
    'removeDelegate(address,address)': [Function (anonymous)],
    'renounceOwnership()': [Function (anonymous)],
    'roles()': [Function (anonymous)],
    'stake(uint256)': [Function (anonymous)],
    'stakes(address)': [Function (anonymous)],
    'subtractTradingFees(address,uint256)': [Function (anonymous)],
    'totalStakes()': [Function (anonymous)],
    'transferOwnership(address)': [Function (anonymous)],
    'unstake(uint256,address)': [Function (anonymous)],
    addDelegate: [Function (anonymous)],
    addTradingFees: [Function (anonymous)],
    callMargin: [Function (anonymous)],
    collectedFees: [Function (anonymous)],
    marginCallerStake: [Function (anonymous)],
    mcDelegatedTo: [Function (anonymous)],
    mcStakes: [Function (anonymous)],
    owner: [Function (anonymous)],
    removeDelegate: [Function (anonymous)],
    renounceOwnership: [Function (anonymous)],
    roles: [Function (anonymous)],
    stake: [Function (anonymous)],
    stakes: [Function (anonymous)],
    subtractTradingFees: [Function (anonymous)],
    totalStakes: [Function (anonymous)],
    transferOwnership: [Function (anonymous)],
    unstake: [Function (anonymous)]
  },
  functions: {
    'addDelegate(address,address)': [Function (anonymous)],
    'addTradingFees(address,uint256)': [Function (anonymous)],
    'callMargin(address[])': [Function (anonymous)],
    'collectedFees(address)': [Function (anonymous)],
    'marginCallerStake(uint256)': [Function (anonymous)],
    'mcDelegatedTo(address,address)': [Function (anonymous)],
    'mcStakes(address)': [Function (anonymous)],
    'owner()': [Function (anonymous)],
    'removeDelegate(address,address)': [Function (anonymous)],
    'renounceOwnership()': [Function (anonymous)],
    'roles()': [Function (anonymous)],
    'stake(uint256)': [Function (anonymous)],
    'stakes(address)': [Function (anonymous)],
    'subtractTradingFees(address,uint256)': [Function (anonymous)],
    'totalStakes()': [Function (anonymous)],
    'transferOwnership(address)': [Function (anonymous)],
    'unstake(uint256,address)': [Function (anonymous)],
    addDelegate: [Function (anonymous)],
    addTradingFees: [Function (anonymous)],
    callMargin: [Function (anonymous)],
    collectedFees: [Function (anonymous)],
    marginCallerStake: [Function (anonymous)],
    mcDelegatedTo: [Function (anonymous)],
    mcStakes: [Function (anonymous)],
    owner: [Function (anonymous)],
    removeDelegate: [Function (anonymous)],
    renounceOwnership: [Function (anonymous)],
    roles: [Function (anonymous)],
    stake: [Function (anonymous)],
    stakes: [Function (anonymous)],
    subtractTradingFees: [Function (anonymous)],
    totalStakes: [Function (anonymous)],
    transferOwnership: [Function (anonymous)],
    unstake: [Function (anonymous)]
  },
  populateTransaction: {
    'addDelegate(address,address)': [Function (anonymous)],
    'addTradingFees(address,uint256)': [Function (anonymous)],
    'callMargin(address[])': [Function (anonymous)],
    'collectedFees(address)': [Function (anonymous)],
    'marginCallerStake(uint256)': [Function (anonymous)],
    'mcDelegatedTo(address,address)': [Function (anonymous)],
    'mcStakes(address)': [Function (anonymous)],
    'owner()': [Function (anonymous)],
    'removeDelegate(address,address)': [Function (anonymous)],
    'renounceOwnership()': [Function (anonymous)],
    'roles()': [Function (anonymous)],
    'stake(uint256)': [Function (anonymous)],
    'stakes(address)': [Function (anonymous)],
    'subtractTradingFees(address,uint256)': [Function (anonymous)],
    'totalStakes()': [Function (anonymous)],
    'transferOwnership(address)': [Function (anonymous)],
    'unstake(uint256,address)': [Function (anonymous)],
    addDelegate: [Function (anonymous)],
    addTradingFees: [Function (anonymous)],
    callMargin: [Function (anonymous)],
    collectedFees: [Function (anonymous)],
    marginCallerStake: [Function (anonymous)],
    mcDelegatedTo: [Function (anonymous)],
    mcStakes: [Function (anonymous)],
    owner: [Function (anonymous)],
    removeDelegate: [Function (anonymous)],
    renounceOwnership: [Function (anonymous)],
    roles: [Function (anonymous)],
    stake: [Function (anonymous)],
    stakes: [Function (anonymous)],
    subtractTradingFees: [Function (anonymous)],
    totalStakes: [Function (anonymous)],
    transferOwnership: [Function (anonymous)],
    unstake: [Function (anonymous)]
  },
  filters: {
    'OwnershipTransferred(address,address)': [Function (anonymous)],
    OwnershipTransferred: [Function (anonymous)]
  },
  _runningEvents: {},
  _wrappedEmits: {},
  address: '0xCf7Ed3AccA5a467e9e704C703E8D87F634fB0Fc9',
  resolvedAddress: Promise { '0xCf7Ed3AccA5a467e9e704C703E8D87F634fB0Fc9' },
  'addDelegate(address,address)': [Function (anonymous)],
  'addTradingFees(address,uint256)': [Function (anonymous)],
  'callMargin(address[])': [Function (anonymous)],
  'collectedFees(address)': [Function (anonymous)],
  'marginCallerStake(uint256)': [Function (anonymous)],
  'mcDelegatedTo(address,address)': [Function (anonymous)],
  'mcStakes(address)': [Function (anonymous)],
  'owner()': [Function (anonymous)],
  'removeDelegate(address,address)': [Function (anonymous)],
  'renounceOwnership()': [Function (anonymous)],
  'roles()': [Function (anonymous)],
  'stake(uint256)': [Function (anonymous)],
  'stakes(address)': [Function (anonymous)],
  'subtractTradingFees(address,uint256)': [Function (anonymous)],
  'totalStakes()': [Function (anonymous)],
  'transferOwnership(address)': [Function (anonymous)],
  'unstake(uint256,address)': [Function (anonymous)],
  addDelegate: [Function (anonymous)],
  addTradingFees: [Function (anonymous)],
  callMargin: [Function (anonymous)],
  collectedFees: [Function (anonymous)],
  marginCallerStake: [Function (anonymous)],
  mcDelegatedTo: [Function (anonymous)],
  mcStakes: [Function (anonymous)],
  owner: [Function (anonymous)],
  removeDelegate: [Function (anonymous)],
  renounceOwnership: [Function (anonymous)],
  roles: [Function (anonymous)],
  stake: [Function (anonymous)],
  stakes: [Function (anonymous)],
  subtractTradingFees: [Function (anonymous)],
  totalStakes: [Function (anonymous)],
  transferOwnership: [Function (anonymous)],
  unstake: [Function (anonymous)],
  deployTransaction: {
    hash: '0xb3bf948f6546e37564014f02b8daa5e9395ad0cf227140b6bd19a25830b4f189',
    blockHash: '0x8e54dec11997bbe4d4aafbda0c949aa499a7a0037afd3b214be6d6c89a4210a6',
    blockNumber: 4,
    transactionIndex: 0,
    confirmations: 1,
    from: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266',
    gasPrice: BigNumber { _hex: '0x01dcd65000', _isBigNumber: true },
    gasLimit: BigNumber { _hex: '0x1c3821', _isBigNumber: true },
    to: null,
    value: BigNumber { _hex: '0x00', _isBigNumber: true },
    nonce: 3,
    data: '0x608060405234801561001057600080fd5b5060405161204a38038061204a8339818101604052606081101561003357600080fd5b8101908080519060200190929190805190602001909291908051906020019092919050505080806000806101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff1602179055505060006100aa6101a860201b60201c565b905080600160006101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff1602179055508073ffffffffffffffffffffffffffffffffffffffff16600073ffffffffffffffffffffffffffffffffffffffff167f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e060405160405180910390a35081600260006101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff16021790555082600581905550670de0b6b3a76400006007819055505050506101b0565b600033905090565b611e8b806101bf6000396000f3fe608060405234801561001057600080fd5b506004361061010b5760003560e01c8063715018a6116100a2578063a694fc3a11610071578063a694fc3a146104c5578063bf9befb1146104f3578063e909ebfa14610511578063ed95eda014610575578063f2fde38b1461062d5761010b565b8063715018a6146103bf57806381fe8039146103c95780638381e182146104435780638da5cb5b146104915761010b565b8063392f5f64116100de578063392f5f64146102525780633f0e9edf1461028657806356fc9124146102e857806367cbf42d1461035d5761010b565b8063020d308d1461011057806316934fc4146101745780631cead9a7146101cc5780632c00d4a714610224575b600080fd5b6101726004803603604081101561012657600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050610671565b005b6101b66004803603602081101561018a57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919050505061081f565b6040518082815260200191505060405180910390f35b61020e600480360360208110156101e257600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050610837565b6040518082815260200191505060405180910390f35b6102506004803603602081101561023a57600080fd5b810190808035906020019092919050505061084f565b005b61025a610ab9565b604051808273ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b6102d26004803603604081101561029c57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050610add565b6040518082815260200191505060405180910390f35b61032a600480360360208110156102fe57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050610bc3565b604051808381526020018273ffffffffffffffffffffffffffffffffffffffff1681526020019250505060405180910390f35b6103a96004803603604081101561037357600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050610c07565b6040518082815260200191505060405180910390f35b6103c7610ce9565b005b61042b600480360360408110156103df57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050610e74565b60405180821515815260200191505060405180910390f35b61048f6004803603604081101561045957600080fd5b8101908080359060200190929190803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050610ea3565b005b61049961104c565b604051808273ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b6104f1600480360360208110156104db57600080fd5b8101908080359060200190929190505050611076565b005b6104fb611083565b6040518082815260200191505060405180910390f35b6105736004803603604081101561052757600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050611089565b005b61062b6004803603602081101561058b57600080fd5b81019080803590602001906401000000008111156105a857600080fd5b8201836020820111156105ba57600080fd5b803590602001918460208302840111640100000000831117156105dc57600080fd5b919080806020026020016040519081016040528093929190818152602001838360200280828437600081840152601f19601f820116905080830192505050505050509192919290505050611237565b005b61066f6004803603602081101561064357600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff1690602001909291905050506114b8565b005b8173ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff1614806107315750600960008373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060003373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060009054906101000a900460ff165b610786576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401808060200182810382526030815260200180611dad6030913960400191505060405180910390fd5b6000600960008473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060008373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600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    r: '0xf697706dfcd1d470c43d8417f2975fc25d4096aa884182be9bdaa32d27bcf973',
    s: '0x1051a2b24bf2e636af73efd48d796aeb7eb873576a086c9c360fab7795ff1e58',
    v: 62709,
    creates: '0xCf7Ed3AccA5a467e9e704C703E8D87F634fB0Fc9',
    chainId: 31337,
    wait: [Function (anonymous)]
  }
}
> 

Rename MarginTrading to CrossMarginTrading

Since we plan on supporting isolated margin we should

• rename the contract MarginTrading
• rename MarginAccount to CrossMarginAccount
• Rename functions in MarginRouter to something like crossX, where X is the original function name

Listing / delisting tokens from cross margin

Eliminate all the solc warnings we can

including making sure all libraries are at their newest version,
needs to be done after we're at solidity v8

Upgrade to Solidity 8

Once OpenZeppelin becomes compatible we should upgrade everything and get rid of SafeMath where we can.

OpenZeppelin/openzeppelin-contracts#2529
https://forum.openzeppelin.com/t/contracts-4-0-timeline/5774

Cap total long / short position on trades

Fixed numbers for either, per token

BONUS: charge funding rate

Check for empty accounts and potential ramifications

and defend

Make sure all contracts are compatible with governance

Understand the logic and think about how we would use it

Permission Liquidation paths / remove price history?

For cross margin liquidation paths should be set up by owner

Remove price history? Maybe

Study uniswap trade aggregations

https://github.com/Uniswap/uniswap-sdk/pull/22

Could be informative for scaling purposes

Add MFD

• Copy mintable erc20 contract like dai
• Issue MFD with bonds, upon request
• have per-token MFD ratios

Use chainlink oracle

We want to create a contract satisfying this interface: https://github.com/marginswap/marginswap-core/blob/main/interfaces/IOracle.sol

In order to do so we need:

Call chainlink

write a function using this chainlink library: import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";

Here's a very rough sketch

address oracleAddress = tokenOracles[tokenAddress];
AggregatorV3Interface oracle = AggregatorV3Interface(oracleAddress);
        (
            uint80 roundID,
            int256 tokenPrice,
            uint256 startedAt,
            uint256 timeStamp,
            uint80 answeredInRound
        ) = oracle.latestRoundData();

return inAmount * tokenPrice * PEG_EXPONENT / oracleExponent[tokenADdress] / tokenExponent[tokenAddress];

This function likely would be a view function, so could be used to implement both the required functions of the interface.

Store metadata

We need a way to tell the contract which oracle to ask for each token, this should be a onlyOwnerExec gated function in the contract. It should store things such as the oracleExponent and tokenExponent as well as the address of teh oracle contract. You can find links to oracle contracts here

Post on forum.dao.review

Abstract out maintenance task

We need to turn margin calling in admin into a multi purpose maintenance task

Look for a more elegant solution for deploying ABIs

The JSON ABI files in build/ are necessary for compiling marginswap sdk and interface, so we want to be able to import them from there but they sully our PR diffs with dross.
Is there a better way?

Look into tree shaking and optimization

I know it's a thing in Solidity. We should use it if it's available in our tooling

Migrate over to hardhat for builds

Basically get rid of truffle, probably?
and also the build/ directory in git.

Add isolated margin

Permissionless, in pairs
With a purchase / liquidation strategy